The number 49089
49089 is a composite number with 4 divisors. Its prime factorisation is 3 × 16363. Divisors (4): 1, 3, 16363, 49089.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 49089: a semiprime: 3 × 16363, the product of two primes.
- 2
49089 is composite. Its prime factorisation is
- 3
The divisors add up to 65456; without 49089 itself that is 16367, so 49089 is deficient (16367 is less than 49089). Euler's totient φ(49089) = 32724 numbers up to 49089 share no factor with it.
- 4
The digits of 49089 add up to 30, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 65 steps to reach 1.
LaTeX source of the formulas on this page
\[ 49089 = 3 \times 16363 \]
49089 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 65456 |
| Euler totient φ(n) | 32724 |
| Square | 2409729921 |
| Cube | 118291232091969 |
| Square root | 221.560376 |
| Digit sum / digital root | 30 / 3 |
| Collatz steps to 1 | 65 |
| Scientific notation | 4.9089 × |
49089 in other forms
| Form | Value |
|---|---|
| In words | forty-nine thousand and eighty-nine |
| Binary (base 2) | 1011111111000001 |
| Octal (base 8) | 137701 |
| Hexadecimal (base 16) | BFC1 |
| Base 3 | 2111100010 |
| As time | 49089 seconds = 13 h 38 min 9 s |
Is 49089 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | No (remainder 1) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (49089 ÷ 3 = 16363) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 1) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 4) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 3) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 5) | A number is divisible by 7 if double the last digit and subtract it from the rest: the result is a multiple of 7. |
| 8 | No (remainder 1) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 3) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 7) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 9) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 49089 a prime number?
No. 49089 = 3 × 16363, so it is divisible by 3.
What are the factors of 49089?
1, 3, 16363, 49089.
What is 49089 in binary?
1011111111000001 (hexadecimal BFC1, octal 137701).
What is the square root of 49089?
About 221.5604.
Is 49089 divisible by 3?
Yes. Its digits add up to 30, a multiple of 3.
What is special about the number 49089?
49089 is a semiprime: 3 × 16363, the product of two primes.